Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...318..738s&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 318, July 15, 1987, p. 738-743.
Astronomy and Astrophysics
Astrophysics
5
Electron Scattering, Galactic Radiation, Neutrinos, Particle Interactions, Radiation Counters, Squid (Detectors), Dark Matter, Milky Way Galaxy
Scientific paper
The feasibility of detecting a dominant neutrino component of the Galactic halo by coherent interaction with electrons in a superconducting target is discussed. The SQUID target measuring coil must combine a very low inductance with a long conducting path, conceptually achievable with a special conductor consisting of thin superconducting strips of modulated width supported on an insulating sheet and folded into a compact multilayer configuration. The external magnetic flux on the coil would need to remain constant to less than 10 to the -8th flux quanta during the measurement period, requiring shielding of external magnetic field changes to less than 10 to the -19th G for periods of typically 2-10 weeks. It is concluded that, although conceptually possible, no realistic proposals for the construction of superconducting detectors for relic low-energy neutrinos are possible in the immediate future.
Lewin J. D.
Smith Patrick F.
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